The most common meaning of duet in dream is that two people are having a conversation about something that is going on with them or their lives. The second meaning of duet in dream can be that two people are arguing about something or trying to solve a problem together. For example, if you had a dream where you were arguing with your significant other, then the interpretation would be that you are feeling like they don’t understand what is going on with your life and they might not have the same perspective as you do.
A duet in terms of dreams, it can also signify the two halves of our personality. It signifies that you and your life are not just separate entities but rather a whole entity that is unified by its two parts.